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Probability & Statistics

03/01/17

30 returns is ages of 20 and 35 who had an adjusted gross income of more than $100,000. Of these 30 returns, 4 had charitable contributions of more than $1,000

What is the probability exactly one of the three audited had a charitable deduction of more than $1,000? (Round your answer to 4 decimal places.) What is the probability at least one of the audited... more

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Probability & Statistics Programming Random Numbers

02/28/17

I have X dice with 6 sides each & want to simulate how many 6's I get by using ONE random number 0 to Y

With 6 sides on, say, 3 dice, I have 216 combinations. ** Three 6's, 1 possibility: 666 ** Two 6's, 15 possibilities: 665 664 663 662 661 656 655... etc ** One 6: 75 possibilities: 611 612... more

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Probability & Statistics

02/28/17

there are 4 red balls 3 yellow balls and 7 purple balls in a bag. what is the probability of picking 2 yellow balls in a row without replacement

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Probability & Statistics

02/27/17

Approximately 3% of the eggs in a store are cracked. If you buy two dozen eggs, what is the probability that no more than two of your eggs are cracked?

Round to 3 decimal places

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Probability & Statistics Statistics Probability Statistics Question

02/23/17

Probability Statistics question, a bit confused.

A population of snakes have total lengths: 7cm, 5cm, 10cm, 13cm, and 9cm. If two snakes are selected at random without replacement (order does not matter), what is the probability that the... more

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Probability & Statistics

02/23/17

P(face card U Jack)

Solving Probability

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Probability & Statistics

02/08/17

A standard pair of six-sided dice is rolled. What is the probability of rolling a sum greater than 8?

My answer has to be a simplified fraction or a decimal rounded to four decimal places.

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Probability & Statistics

02/08/17

Probability of shooting free throws is 90% (9/10) If player makes two free throws in a row, x is the number of free throws made. what is P(x=2)

Probability of shooting free throws is 9/10. If player makes two free throws in a row, x is the number of free throws made. What is P(x=2)

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Probability & Statistics

01/29/17

gcse probability

there is a fair five sided spinner the spinner has two black sections and three white sections the sections are numbered as 1,2,3,3,3 1,3,3 is white sections another three is a black section 2... more

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Probability & Statistics

01/13/17

what kind of maths would help me predict and guess the next random event.

i got 4 suits. hearts, diamonds, spades and clubs. one suit is dealt out randomly one after the other. is there any maths/probabilities that would help me predict/guess or look for certain patterns.

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Probability & Statistics Math Probability Math Help

01/09/17

There are 6 girls 5 guys available to go on a trip and they need 4 people what is the probability that there me more girls then guys?

Need help figuring it out the answer is 23/66 but I dont know how i got there?!

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Probability & Statistics Statistics Probability Algebra

12/31/16

When a biased coin is tossed, the probability of getting a tail is 1/4. If the coin is tossed two times, what is the probability of getting two heads?

I'm having a little trouble with this

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Probability & Statistics Probability Problem Solving Word Problems

12/29/16

What is the expected number of greengreen balls in the sample

Suppose three balls are drawn (with replacement) from a bag that contains 4 red balls and 6 green balls. The number of green balls is counted. What is the expected number of greengreen balls in the... more

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Probability & Statistics Statistics Question Distribution Probability Distribution

12/15/16

Discrete probability distributions

If you select a red diamond picture card (i,e.) a card that doesn't have a number on it) you win $100. It costs $10 to play this game. What is your expected earnings? if you played this game 10,000... more

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Probability & Statistics

12/13/16

Dice roll probability question

Suppose I have a fair eight-sided die with three sides painted red and ﬁve sides painted blue, and roll it 4 times. Let X be the number of times the die lands with a red side facing up. What is... more

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Probability & Statistics

12/10/16

What is the probability that the family has at least 1 boy? What is the probability that the family has 2 boys and 2 girls?

Each newborn baby has a probability of approximately 0.49 of being female and 0.51 of being male. The family has four children.

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Probability & Statistics

12/10/16

Finding the probability

Sheldon has cereal for breakfast everyday. Each day he randomly selects from the six different cereals on his self. The probability that Sheldon has "Just Cereal", one of the cereals, on the self,... more

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Probability & Statistics

12/07/16

two fair dice are rolled. What are the odds in favor of the event that the sum of the two numbers on the dice is 4

A. 1 to 11 B. 1 to 12 C. 1 to 4 D. 1 to 3

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Probability & Statistics Math Statistics Probability

12/07/16

A Probability Question (Squash Game)

A squash game consists of rallies problem. (Question):- Notes:- P(A wins) = ra / (ra+rb), wins a point in a rally 0 < ra ≤ 100 Suppose player (A) has ability ra = 60 and... more

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Probability & Statistics

12/07/16

if a business wants to be able to save $200,000 to buy new production equipment in 4 years, how much will it have to invest every quarter at 6% interest?

Must find the quarterly payments with 6% interest needed to raise $200,000 in four years.

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Probability & Statistics Probability

12/04/16

Show that if P (E) = 1, then P (H l E) = P (H)

How to show a proof using probability rules?

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Probability & Statistics

12/02/16

A box contains

A box contains 1010 transistors, 44 of which are defective. If 44 are selected at random, find the probability thata. All are defective.b. None are defective

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Probability & Statistics

12/02/16

PROBABILITY

A box contains 13 green marbles and 9 white marbles. If the first marble chosen was a white marble, what is the probability of choosing, without replacement, another white marble?

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Probability & Statistics

12/02/16

P(a) = 0.5 , p(b) = 0.7 what is p(a intersection b)

I am new to probality and trying to learn probality concepts but i am stuck on this any help would be helpfull .

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Probability & Statistics

12/01/16

P(a) = 0.5 , p(b) = 0.7 what is p(a | b)

I am trying to learn conditional probality but not able to figure solution for this any solution would be of great help

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30 returns is ages of 20 and 35 who had an adjusted gross income of more than $100,000. Of these 30 returns, 4 had charitable contributions of more than $1,000

I have X dice with 6 sides each & want to simulate how many 6's I get by using ONE random number 0 to Y

there are 4 red balls 3 yellow balls and 7 purple balls in a bag. what is the probability of picking 2 yellow balls in a row without replacement

Approximately 3% of the eggs in a store are cracked. If you buy two dozen eggs, what is the probability that no more than two of your eggs are cracked?

Probability Statistics question, a bit confused.

P(face card U Jack)

A standard pair of six-sided dice is rolled. What is the probability of rolling a sum greater than 8?

Probability of shooting free throws is 90% (9/10) If player makes two free throws in a row, x is the number of free throws made. what is P(x=2)

gcse probability

what kind of maths would help me predict and guess the next random event.

There are 6 girls 5 guys available to go on a trip and they need 4 people what is the probability that there me more girls then guys?

When a biased coin is tossed, the probability of getting a tail is 1/4. If the coin is tossed two times, what is the probability of getting two heads?

What is the expected number of greengreen balls in the​ sample

Discrete probability distributions

Dice roll probability question

What is the probability that the family has at least 1 boy? What is the probability that the family has 2 boys and 2 girls?

Finding the probability

two fair dice are rolled. What are the odds in favor of the event that the sum of the two numbers on the dice is 4

A Probability Question (Squash Game)

if a business wants to be able to save $200,000 to buy new production equipment in 4 years, how much will it have to invest every quarter at 6% interest?

Show that if P (E) = 1, then P (H l E) = P (H)

A box contains

PROBABILITY

P(a) = 0.5 , p(b) = 0.7 what is p(a intersection b)

P(a) = 0.5 , p(b) = 0.7 what is p(a | b)

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What is the expected number of greengreen balls in the sample